Significant Winter Storm to Bring Heavy Snow and Ice Impacts; Dangerously Cold Temperatures Expands Across the East

A significant, long-duration winter storm will bring widespread heavy snow, sleet, and freezing rain from the Southern Rockies to New England through Monday. Widespread travel disruptions, prolonged power outages, and vast tree damage is likely. Frigid temperatures, gusty winds, and dangerous wind chills will expand from the north-central US to the Southern Plains, MS Valley, and Midwest. Read More >

Hazardous Weather Conditions

Current conditions at

Janesville-Rock County (KJVL)

Lat: 42.62°NLon: 89.04°WElev: 801ft.

Mostly Cloudy with Haze

-8°F

-22°C

Humidity	64%
Wind Speed	NW 18 G 25 mph
Barometer	30.47 in
Dewpoint	-17°F (-27°C)
Visibility	5.00 mi
Wind Chill	-31°F (-35°C)
Last update	23 Jan 3:15 am CST

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

5 Miles NNW Beloit WI

Cold Weather Advisory January 23, 01:00pm until January 24, 12:00pm

Extreme Cold Warning January 23, 03:25am until January 23, 01:00pm

Click here for hazard details and duration

Cold Weather Advisory

Extreme Cold Warning

Extreme Cold Warning January 23, 03:25am until January 23, 01:00pm
NOW until 1:00pm Fri
Extreme Cold Warning
Overnight
Low: -14 °F
Slight Chance
Snow
Friday
High: -5 °F
Cold
Friday Night
Low: -15 °F
Partly Cloudy
Saturday
High: 3 °F
Cold
Saturday Night
Low: -3 °F
Chance Snow
Sunday
High: 10 °F
Chance Snow
Sunday Night
Low: -7 °F
Mostly Cloudy
Monday
High: 9 °F
Cold

Detailed Forecast

Overnight

A slight chance of snow before 4am, then a chance of flurries after 4am. Mostly clear, with a low around -14. Wind chill values between -30 and -35. Northwest wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.

Friday

Sunny and cold, with a high near -5. Wind chill values between -25 and -35. Northwest wind 10 to 15 mph.

Friday Night

Partly cloudy, with a low around -15. Wind chill values between -20 and -25. Northwest wind around 5 mph.

Saturday

Mostly cloudy and cold, with a high near 3. Wind chill values between -5 and -15. Calm wind becoming northeast around 5 mph.

Saturday Night

A 30 percent chance of snow, mainly after midnight. Cloudy, with a low around -3. Calm wind becoming north around 5 mph after midnight.

Sunday

A 30 percent chance of snow, mainly before noon. Mostly cloudy and cold, with a high near 10. North wind 5 to 10 mph.

Sunday Night

Mostly cloudy, with a low around -7. Northwest wind around 10 mph.